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# Mean and Standard Deviations

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A component is comprised of two halves. The thickness of each half is normally distributed with a mean of 2 millimeters and a standard deviation of 0.1 millimeter and the halves are independent.
a. Determine the mean and standard deviation of total thickness of the two halves. Answer E(T)=4 , and sigma of T=0.1414 ?
b. What is the probability that the total thickness exceeds 4.3 millimeters?

##### Solution Summary

This solution shows step-by-step calculations to determine the mean and standard deviation and also the probability of the total thickness exceeding 4.3 millimeters.

##### Solution Preview

Mean = 2ml + 2 ml = 4ml

Variance = sum of variances

variance of total = ...

##### Measures of Central Tendency

This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.

##### Measures of Central Tendency

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